Jambs wilkes



Patented June 12.1883.

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r k f 2- WITNESSES:

J. WILKES. No. 279,299. NUT LOOK.

a If .wm k Q E} n a R vi INVENTOR Wdw ATTORNEYS.

' UNITED STATES PATENT OFFICE.

JAMES \VITJKES, OF VINNIPFG, MANITOBA, CANADA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 279,299, dated June 12, 1883.

Application filed March 9, 1883. Modeh) T aZZ whom it may concern Be it known that 1, JAMES Wines, of Winnipeg, in the Province of Manitoba and Dominion of Canada, have invented a new and Improved Nut-Lock for Fish-Plates, of which the following is at'ull, clear, and exact description.

The invention consists in a nut-lock formed of two plates, one of which is provided with two squared apertures for receiving the nuts at the ends of the fish-plates, and with a cen tral tongue pressed out of the plane of the plate, and the other key or locking-plate has two recesses formed by prongs for receiving the middle nuts, and a tongue also pressed out of the plane of the plate, which tongue is passed in between the tongue of the former plate and the fish-plate for the purpose of locking the middle nuts, which hold the lockingplate against the fish-plate.

The invention also consists in parts of the plates, as will be fully set forth and described hereinafter.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a longitudinal elevation of my improved nut-lock for fish-plates, showing the same applied. Fig. 2 is asectional plan view of the same and the rails on the line 00 a, Fig. 1.. Fig. 3 is a longitudinal elevation of the key-plate. Fig. 4 is a longitudinal elevation of the nut-lock plate.

A strip or longitudinal plate of metal, A, is provided at each end with a square or slightlyoblong aperture, B, to receive the end bolt-nuts of the fish-plate, and a short distance from each side of the middle it is provided with a circular aperture, 0. Between the apertures C it is provided with two vertical recesses, D, equidistant from the middle and extending from the upper edge to about the middle of the height of the same, thereby forming a tongue, E, which is pressed slightly out of the plane of the strip. The tongue E is provided with a recess, F, in its upper edge. A metal locking-plate or key, G, is provided at each end with a downwardly-projecting prong, H, forming recesses J, of sufficient size to receive the inner nuts, L.

Equidistant from the middle it is provided with two vertical recesses, K, extending from the lower edge to about the middle of the height of the plate, the side recesses forming a tongue, M, which is pressed slightly out 01: the plane of the plate. The tongue M is provided with a recess or notch, N, for receiving the end of an implement to raise the plate. The inner edges of the recesses J and the recesses K form downwardly-proiecting tongues R- on the plate G.

The nut-lock is applied as follows: The fishplates S are placed against the rails, the bolts P are passed through the apertures in the fishplates and rails, and the nuts L are screwed on the end bolts 1 and drawn up tightly. Then the plate or strip A is placed against one fish-plate, the nuts L passing into the recesses B, which prevent them from turning. The nuts L are then screwed on the middle bolts 1 and drawn up tightly and until their side edges are vertical. The locking plate G is placed against the plate A, and the tongue M forced into the space or pocket between the surface of the plate A and the rear surface of the tongue 1* the tongues H R resting against the side edges of the nuts L of the middle bolts, and thus preventing the same from turning. All the nuts can, thus be locked by means of a cheap and simple device, and one of the fishplates will be strengthened.

Having thus described my invention, what I claim as new, and desire to secure by Letters- Patent, is-

1. The combination, with the plate A, having apertures B and atongue, E, ofthe lockingplate G, provided with prongs H and a tongue, M, substantially as herein shown and described, and for the purpose set forth.

2. The combination, with the plate A, having apertures B and a tongue, E, pressed out of the plane of the plate, and having a recess, F, in its upper end, of the locking-plate G, provided with prongs H and a tongue, M, substantially as herein shown and described, and 5 for the purpose set forth.-

3. The combination, with the plate A, having apertures B G and a tongue, E, of the locking-plate G, having prongs HR and a tongue,

M, pressed out of the planeof the plate G, sub- I00 stantially as herein shown in d described, and for the purpose set forth.

1L. The'combination, with the plate A, having apertures B O and a tongue, E, of the lock- 5 ing-plate G, having prongs H R and a tongue,

M, pressed out of the plane of the plate G and provided with :1 recess, N, substantially as herein shown and desoiibed, and for the pur poso set forth.

JAMES WILKEs.

\ViLnesses 'WALTER T. Fooo, THOMAS F. BELLHOUSE. 

